I just took a $169,000 30 year mort at 4.6% which I have yet to make a payment on(3/1/17 is first payment due). I am about to close on my parents condo which I inherited and want to use part of the priceeds to lower my payment and get rid of the PMI, about $80,000 down. My credit union sells mortgages to fannie, can I reneg w/o the closing costs since everything is so recent? We didnt wait for condo to sell due to time constraints on accepted offer.